恐龍卡第 1063 張，共 2 027 張

Linhenykus

名字的意思： “Linhe claw, from the city of Linhe in Inner Mongolia and the Greek word for claw”1

吃：昆蟲奇特的羽毛恐龍白堊紀晚期

Linhenykus was a tiny dinosaur that lived in the Late Cretaceous period. It is famous for having only one big finger on each hand, making it the only non-avian dinosaur known with just one digit. It probably used its single claw to dig into insect nests for food.2 1

生存年代

84 到 72 百萬年前3

白堊紀晚期

化石發現地

Inner Mongolia, China2 1

長度

0.5 m (1.6 ft)1

體重

0.45 kg 到 0.5 kg (1 到 1 lb)2 1

高度

0.21 m (0.7 ft)

估計值

最高速度

時速約 18 公里（11 英里）

跑步, 估計值

牠生活在什麼時候？

三疊紀

侏羅紀

白堊紀

2 億 5200 萬年前20114566，小行星撞地球

牠有多大？

牠有多長？

牠有多高？

估計值

牠有多重？

跟 4 根香蕉一樣重

跟 3 根香蕉頭尾相接一樣長比一隻家貓還輕跟 4 根香蕉一樣重跟 16 塊積木排成一排一樣長小到能從椅子底下走過去能在 20 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Linhenykus 跟「你」比起來有多大？

只是在你的瀏覽器裡算算數學。什麼都不會被儲存或傳送出去。

牠有多快？

走路的人 時速約 5 公里 (3 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 mph)

Linhenykus 時速約 18 公里 (11 mph)

一匹飛奔的馬 時速約 65 公里 (40 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Linhenykus is the only known non-avian dinosaur that had just one functional finger on each hand.2

It was very small, only about 50 centimetres (1.6 feet) long and weighed around 500 grams (18 ounces).1

The fossil was found in the Wulansuhai Formation, which is about 75 to 71 million years old.1

Linhenykus belonged to a group called alvarezsaurids, which are known for their short, strong arms and big claws.2

Scientists think Linhenykus was a subadult when it died, because its bones were not fully fused together.2

The hand of Linhenykus shows a mix of primitive and advanced features, meaning its evolution was complex.2

Linhenykus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Linhenykus 可能的樣子。這只是猜測：真正的動物可能長得不一樣，也沒有人知道牠真正的顏色。

你們都在問

關於 Linhenykus 最常被問的問題

?How big was Linhenykus?

It was very small, about 50 centimetres (1.6 feet) long and weighed around 500 grams (18 ounces).1

?What did Linhenykus eat?

Scientists think it was insectivorous, using its single claw to dig into ant and termite nests, similar to modern anteaters.1

?Why did Linhenykus have only one finger?

Linhenykus had only one functional finger because the outer digits were reduced and lost their finger bones, making it the only non-avian dinosaur with a single digit.1 2

?Is Linhenykus a dinosaur?

Yes, Linhenykus is a non-avian dinosaur, specifically an alvarezsaurid theropod.1

給恐龍專家

學名: Linhenykus
命名者: Xu et al. 20113
類群: 奇特的羽毛恐龍
科 / 演化支: Alvarezsauridae3
分類: Theropoda > Alvarezsauridae3
岩石的年代: 84 到 72 百萬年 (Campanian)3
岩層: Wulansuhai3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 2 筆3
發現: Linhenykus was named in 2011 by Xu Xing and his team. The fossil was collected by Jonah N. Choiniere and Michael Pittman in Inner Mongolia, China.1
仍有爭議: Scientists are still debating whether Linhenykus used its single claw mainly for digging or for other purposes.2